75 lines
1.7 KiB
JavaScript
75 lines
1.7 KiB
JavaScript
goog.provide('ol.source.OSM');
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goog.require('ol.Attribution');
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goog.require('ol.source.XYZ');
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/**
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* @constructor
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* @extends {ol.source.XYZ}
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* @param {ol.source.OSMOptions=} opt_options Open Street Map options.
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*/
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ol.source.OSM = function(opt_options) {
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var options = goog.isDef(opt_options) ? opt_options : {};
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var attributions;
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if (goog.isDef(options.attributions)) {
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attributions = options.attributions;
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} else if (goog.isDef(options.attribution)) {
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attributions = [options.attribution];
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} else {
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attributions = ol.source.OSM.ATTRIBUTIONS;
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}
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var maxZoom = goog.isDef(options.maxZoom) ? options.maxZoom : 18;
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var url = goog.isDef(options.url) ?
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options.url : 'http://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png';
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goog.base(this, {
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attributions: attributions,
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crossOrigin: 'anonymous',
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opaque: true,
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maxZoom: maxZoom,
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url: url
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});
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};
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goog.inherits(ol.source.OSM, ol.source.XYZ);
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/**
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* @const
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* @type {ol.Attribution}
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*/
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ol.source.OSM.DATA_ATTRIBUTION = new ol.Attribution({
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html: 'Data © ' +
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'<a href="http://www.openstreetmap.org/">OpenStreetMap</a> ' +
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'contributors, ' +
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'<a href="http://www.openstreetmap.org/copyright">ODbL</a>'
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});
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/**
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* @const
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* @type {ol.Attribution}
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*/
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ol.source.OSM.TILE_ATTRIBUTION = new ol.Attribution({
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html: 'Tiles © ' +
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'<a href="http://www.openstreetmap.org/">OpenStreetMap</a> ' +
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'contributors, ' +
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'<a href="http://creativecommons.org/licenses/by-sa/2.0/">CC BY-SA</a>'
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});
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/**
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* @const
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* @type {Array.<ol.Attribution>}
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*/
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ol.source.OSM.ATTRIBUTIONS = [
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ol.source.OSM.TILE_ATTRIBUTION,
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ol.source.OSM.DATA_ATTRIBUTION
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];
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